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Power transferring mechanism

A power transmission mechanism, gear shaft technology, applied in the direction of engine components, machines/engines, mechanical equipment, etc., can solve problems such as bearing hole wear, and achieve the effects of preventing the reduction of the force-bearing area, suppressing wear, and suppressing surface pressure

Inactive Publication Date: 2012-06-27
MITSUBISHI MOTORS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, due to the change of the direction of the force acting on the idle gear shaft in the above structure, the corners of the D-cut part and the inner wall of the bearing hole of the cylinder block repeatedly collide, and the inner wall of the bearing hole is gradually worn, and finally a shoulder (step) may be generated.

Method used

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Embodiment Construction

[0031] Embodiments of the present invention will be described below based on the drawings.

[0032] like Figure 1 to Figure 3 As shown, a balance shaft 2 parallel to a crankshaft 4 is provided at the lower portion of a crankcase 3 of the engine of this embodiment.

[0033] The balance shaft 2 is formed such that the center of gravity deviates from the center of the axis. Vibration occurs as the engine's pistons reciprocate due to the tilted connecting rods. In order to cancel this vibration, the balance shaft 2 is rotationally driven synchronously with the crankshaft 4 .

[0034] The crankshaft 4 and the balance shaft 2 are rotatably supported by the crankcase 3 , and each one end protrudes outward from a side wall 3 a of the crankcase 3 .

[0035] Power transmission from the crankshaft 4 to the balance shaft 2 is performed through gears. A crank gear 5 is fixed to one end of the crankshaft 4 . The balance gear 6 is fixed on one end of the balance shaft 2 . Furthermore,...

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PUM

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Abstract

The invention provides a power transferring mechanism, formed on a plane vertical to the axis of an idle gear shaft, a second line penetrating through the axis of the idle gear shaft is parallel to a first line relative to a first engaging point of engaging an idle gear with an input gear and a second engaging point of engaging the idle gear with an output gear, the length of an incision part at the rotating side of the input gear on the first engaging point is less than the length of another incision part at the side opposite to the rotating side.

Description

[0001] Cross References to Related Applications [0002] The present invention is based on Japanese Patent Application (Japanese Patent Application No. 2009-032817) filed on February 16, 2009, the contents of which are incorporated herein by reference. technical field [0003] The invention relates to a supporting structure of a gear shaft in a power transmission mechanism that transmits power between two gears through an idle gear. Background technique [0004] Motors are known that have balance shafts to reduce vibrations. The engine has a balance shaft that rotates synchronously with the crankshaft to counteract the vibrations that accompany the reciprocating motion of the pistons. Especially in engines with large torque variations like diesel engines, gears are sometimes used to transmit power between these shafts in order to synchronize the crankshaft and balance shafts correctly. In this case, an idler gear may be provided between a crank gear provided on the cranksh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B67/04F02B77/00F16F15/26F16H1/20F16H57/021
Inventor 铃木得大石健一吉本直人中岛庄荣成田敏夫野村幸弘酒井知治
Owner MITSUBISHI MOTORS CORP